CIS Conference and Workshop Proceedings

2020

CFNS Workshop on Beam Polarization and Polarimetry at EIC ([1]) June 26, 2020

J. Grames "Production of Polarized Positrons at Jefferson Lab" (slides) media:Grames_CNFS_FINAL.pptx

2019

International Workshop on Future Linear Colliders (LCWS 2019) ([2]) October 28 - November 1, Sendai Japan

• Compressed PowerPoint (~19 MB) => media:LCWS19_Grames_compressed.pptx

2019 Workshop on Polarized Sources, Targets, and Polarimetry (PSTP 2019) ([3]) September 23-27 2019, Knoxville, TN

J. Yoskowitz, J. Grames, J. Hansknecht, C. Hernandez-Garcia, G. A. Krafft, M. Poelker, R.Suleiman, G. Palacios-Seranno, S. Wijethunga, S. B. Van Der Geer "New Simulations for Ion-Production and Back-Bombardment in GaAs Photo-guns"

• Presentation
• Proceedings

European Workshop on Photocathodes for Particle Accelerator Applications (EWPAA 2019) ([4]) Paul Scherrer Institut, Villigen, Switzerland, from September 11 to 13, 2019

• PowerPoint => media:EWPAA 2019_poelker.pptx

10th International Particle Accelerator Conference (IPAC 2019) ([5]) MELBOURNE CONVENTION & EXHIBITION CENTRE, AUSTRALIA, 19 – 24 MAY 2019

• PDF => media:IPAC 2019_zhang.pdf

2018

International Workshop on Future Linear Colliders (LCWS 2018) ([6]) October 22-26, 2018, University of Texas - Arlington

• PowerPoint (37 MB) => media:LCWS18_Grames_FINAL.pptx
• PDF (40 MB and animation does not work) => media:LCWS18_Grames_FINAL.pdf

Photocathode Physics for Photoinjectors (P3) Workshop(website), October 15-17, 2018, Santa Fe, New Mexico

• M.A. Mamun, "Magnetized Electron Source for JLEIC Electron Cooler" media:2018_P3_JLab Magnetized Gun_mamun.pdf

Spin 2018 (website) September 10-14, 2018, Ferrara, Italy

18th International Conference on Positron Annihilation (website), August 19-24, 2018, Orlando, Florida

• J. Grames, "Polarized Beams – A Tale of Two Leptons" media:ICPA_Grames_FINAL.pptx

Electrons for the LHC - LHeC/FCCeh and Perle Workshop (website), June 27-29, 2018

• J. Grames, P. Adderley, B. Bullard, J. Hansknecht, C. Hernandez-Garcia, G. Palacios, M. Poelker, D. Moser, M. Stutzman, S. Zhang, "Milliampere beam studies using high polarization photocathodes at the CEBAF Photoinjector" media:LHeC18_Grames_Final.pptx

9th International Particle Accelerator Conference (IPAC'18), Vancouver, British Columbia, Canada, April 29 to May 4, 2018

• M.A. Mamun, P. Adderley, J. Benesch, B. Bullard, J. Delayen, J. Grames, J. Guo, F. Hannon, J. Hansknecht, C. Hernandez-Garcia, R. Kazimi, G. Krafft, M. Poelker, R. Suleiman, M. Tiefenback, Y. Wang, S. Wijethunga, and S. Zhang, "Production of Magnetized Electron Beam from a DC High Voltage Photogun" media:THPMK108_poster_Mamun_IPAC18.pdf, media:THPMK108_Proceedings_Mamun_IPAC18.pdf

• S.A.K. Wijethunga, M.A. Mamun, F.E. Hannon, G.A. Krafft, J. Benesch, R. Suleiman, M. Poelker, J.R. Delayen "Simulation Study of the Magnetized Electron Beam" Media:THPAK071_poster_Sajini_IPAC'18.pdf, Media:THPAK071_proceedings_Sajini_IPAC'18.pdf

• F.E.Hannon: "Design of a High Charge, Low Energy, Magnetized Electron Injector" Media:THPMK107.pdf, Media:THPMK107_poster.pdf

2017

International Workshop on Polarized Sources, Targets and Polarimeters (PSTP), Oct 15 - 20, 2017, Daejeon, South Korea

• Wei Lui, Matt Poelker, Shukui Zhang, Marcy Stutzman, "Spin Polarization Sensitivity of Electrons Emitted from Bulk GaAs Photocathodes" media:PSTP2017_Wei Lui_polarization study bulk GaAs.pptx

• M. Poelker, P. Adderley, J. Benesch, B. Bullard, J. Grames, F. Hannon, J. Hansknecht, C. Hernandez-Garcia, R. Kazimi, G. Krafft, M. A. Mamun, R. Suleiman, M. Tiefenback, S. Zhang, Y. Wang, S. Wijiethunga and J. Yoskovitz, "Magnetized Electron Beam for JLEIC Re-circulator Cooler Ring" media:PSTP2017_Poelker_magnetized beam.pptx, media: Proceedings of Science submission, "Magnetized Electron Beam for JLEIC Re-circulator Cooler Ring".pdf

• Joe Grames, Phil Adderley, John Hansknecht, Reza Kazimi, Matt Poelker, Daniel Moser, Marcy Stutzman, R. Suleiman Shukui Zhang "Milliampere beam studies using high polarization photocathodes at the CEBAF Photoinjector" media:PSTP2017_Grames_v1.pptx media:PSTP2017_Grames_Final.pdf

International Workshop on Physics with Positrons @ JLab (JPOS), Sep 12 - 15, 2017, Jefferson Lab, Newport News, VA

• media:Larry Cardman_The PEPPo method for polarized positrons and PEPPo II.pptx
• AIP Conf. Proc. 1970

NSTAR 2017, the 11th International Workshop on the Physics of Excited Nucleons,, August 20-23, 2017, University of South Carolina, Columbia, SC Scientific Program

• J. Grames media:NSTAR_Grames_Final.pptx

2016

Photocathode Physics for Photoinjectors, October 17-19, 2016, JLab

• M. A. Mamun, "Study of bialkali antimonide photocathode on Niobium substrate" media:Mamun Nb substrate.pptx
• W. Liu, "The effects of ion bombardment on bulk GaAs photocathodes with different surface-cleavage planes" media:Ion bombardment.pptx

2016 Fall Meeting of the APS Division of Nuclear Physics, Vancouver BC, Canada, 13-16 October 2016

• B. Hardy and J. Grames, "Magneto-Optic Kerr Effect in a Magnetized Electron Gun" media:HardyDNP.pptx media:HardyDNP.pdf
• D. Brakman, C. Cuevas, G.P. Gilfoyle, J. Grames, B. Gunning, "Uniformly Rastering an Electron Beam on a Polarized Cryotarget" media:BrakmanDNP.pptx media:BrakmanDNP.pdf

28th Linear Accelerator Conference, LINAC 16, East Lansing, Michigan, 25-30 September 2016

• M. Drury, G. Eremeev, J. Grames, R. Kazimi, M. Poelker, J. Preble, R. Suleiman, Y. Wang, M. Wright, "4 K SRF Operation of the 10 MeV CEBAF Photo-Injector" media:MOLPR010_proceedings.pdf media:MOLPR010_poster.ppt

SPIN 2016, Urbana-Champaign, 26-30 September 2016

• M. Poelker "12 GeV CEBAF: Accelerator Systems and Polarized Beams" media:SPIN2016_Poelker_12GeV CEBAF.pdf or view ppt file at https://indico.cern.ch/event/570680/contributions/2308608/
• J. Grames, "Production of Highly Polarized Positrons Using MeV Energy Polarized Electrons" presentation media:SPIN_Grames_Final.pptx and proceedings media:Spin2016Grames.pdf
• T. Gay, "High-Precision 5-MeV Mott Polarimetry at the JLab Injector", SPIN 2016 @ UIUC, Sep 26-30, 2016 media:SPIN16_Gay.pdf

ECT Workshop: Physics beyond the standard model and precision nucleon structure , Trento, Italy, 1-5 August, 2016

• A. Freyberger, "CEBAF Polarized Beam for Parity Violation Experiments in the 12 GeV era" media:ECT2016_APF.pdf

7th International Particle Accelerator Conference, BEXCO, Busan, Korea, 8-13 May 2016

• R. Kazimi, J. M. Grames, J. Hansknecht, A. Hofler, G. Lahti, T. E. Plawski, M. Poelker, R. Suleiman, Y. Wang, "Four Beam Generation for Simultaneous Four-Hall Operation at CEBAF" media:THPOY060-Final.PDF media:THPOY060_poster.pdf Proceedings

APS April Meeting, Salt Lake City Utah, 16-19 April 2016

• M. Poelker, "Polarized electrons for parity violation experiments at Jefferson Lab" media:poelker APS mtg slides.pptx

2015

Polarized Sources, Targets and Polarimetry Workshop (PSTP'15), Bochum, Germany, September 14-18, 2015

• J. Grames, "A Low-Energy Source of Highly Spin-Polarized Positrons" Media:PSTP15_Grames.docx
• M. Poelker, "Ongoing efforts to construct a 350 kV dc high voltage photogun with inverted insulator geometry" Media:PSTP15_poelker_building a 350kV gun.pptx

Accelerator Operations Retreat, Jefferson Lab, July 15-17, 2015

• J. Grames, "Laser and Injector Upgrade for 4-Hall Operations" Media:OpsRetreat15_Grames.pptx

Intense Electron Beams Workshop, Cornell Unversity, June 17-19, 2015

• J. Grames, "High Current Polarized Electron Sources" Media:IEB_Grames_Final.pptx
• J. Grames, "Convener Summary - Electrons Sources and Polarimeters" Media:IEB_Technology_Grames.pptx
• J. Grames, "Plenary Open Topics - PEPPo" Media:IEB_PEPPo_Grames.pptx

IPAC2015, Richmond, VA May 3-9, 2015

• M.L.Stutzman, P.A.Adderley, M.Poelker, Md.A.Mamun "Vacuum Characterization and Improvement for the Jefferson Lab Polarized Electron Source" Media:StutzmanPosterIPAC2015.pptx Media:StutzmanProceedingsIPAC2015.docx

IPAC2015, Richmond, VA May 3-9, 2015

• S.Zhang, M.L.Stutzman, M.Poelker, Y. Chen, and A. Moy, "Observation of Significant Quantum Efficiency Enhancement from a Polarized Photocathode with Distributed Brag reflector" Media:SZhangPosterIPAC2015.pdf Media:SZhangProceedingsIPAC2015.pdf

IPAC2015, Richmond, VA May 3-9, 2015

• A. Adeyemi, J. Grames, R. Suleiman for the PEPPo Collaboration, "PEPPo: Using a Polarized Electron Beam to Produce Polarized Positrons" Media:AdeyemiPosterIPAC2015.pdf Media:AdeyemiProceedingsIPAC2015.pdf

2014

VII Congreso Internacional de Ingeniería Física, November 24 - 28, 2014, Universidad Autónoma Metropolitana, Ciudad de México

• M. Poelker, "Future Trends for Photoelectron Guns at Accelerators" Media:Electron Guns at Jefferson Lab.pptx

Proton Ring EDM Collaboration Meeting, November 10 - 11, 2014, Brookhaven National Lab

• M. Poelker, "High Voltage Studies at Jefferson Lab" Media:Can our experience building DC high voltage photoguns help the Proton Ring EDM effort?.pptx

P3 Workshop, November 3 - 5, Lawrence Berkeley National Laboratory, Berkeley, CA USA P3 = Physics of Photocathodes for Photoinjectors [7]

• R. Mammei, M. Poelker, "Performance of alkali-antimonide photocathodes inside a JLab dc high voltage photogun" Media:CsK2Sb lifetime studies_P3.pptx
• M.A. Mamun, M. Poelker, "Alkali-antimonide photocathodes using co-deposition and an effusion source" Media:Bi-alkali photocathodes and effusion source_P3.pptx

41st ICMCTF, April 28 - May 2, 2014, San Diego, CA, USA

• M.A.Mamun, E. Forman, R. Taus, M. Poelker, A.A. Elmustafa, "Evaluation of TiN-Coated Aluminum Electrodes for DC High Voltage Electron Guns" Media:Mamun_ICMCTF Conference_SanDiego_4_28_14.pptx

Electron Ion Collider Workshop, March 17-21, 2014, Jefferson Lab

• C. Hernandez-Garcia, J. Hansknecht, M. Poelker, "Status of the JLab 500 kV Inverted Gun"

Electron Ion Collider Workshop, March 17-21, 2014, Jefferson Lab

• J. Grames, P. Adderley, T. Gay, J. Hansknecht, C. Horowitz, M. McHugh, A. Opper, M.Poelker, X. Roca-Maza, C.Sinclair, M. Stutzman, R. Suleiman, "Precision Test of Mott Polarimetry in the MeV Energy Range"

Electron Ion Collider Workshop, March 17-21, 2014, Jefferson Lab

• J. Grames on behalf of PEPPo Collaboration "Polarized Electrons for Polarized Positrons: A Proof-of-Principle Experiment"

Electron Ion Collider Workshop, March 17-21, 2014, Jefferson Lab

• R. Suleiman, P. Adderley, J. Clark, S. Covert, J. Grames, J. Hansknecht, M.Poelker, M. Stutzman, "Operation of Jefferson Lab Polarized Electron Sources at High Currents"

- Talk: Media:WEYAUD2_talk.pdf Media:WEYAUD2_talk.ppt 
- Proceedings: Media:WEYAUD2.pdf Media:WEYAUD2.docx

2013

XVth International Workshop on Polarized Sources, Targets, and Polarimetry Workshop Website

• J. Grames, on behalf of PEPPo Collaboration "Polarized Electrons for Polarized Positrons: A Proof-of-Principle Experiment"

XVth International Workshop on Polarized Sources, Targets, and Polarimetry Workshop Website

• J. Grames, M. McHugh, C. Horowitz, M. Melnitchouk, A. Opper, M. Poelker, S. Rhodes, X. Roca-Maza, C. Sinclair, R. Suleiman, "Mott polarimeter upgrade at Jefferson Lab" PDF

IPAC 2013, May 12-17, Shanghai, China

• E. Voutier on behalf of the PEPPo Collaboration, "The Proof-of-Principle Experiment PEPPo"

IPAC 2013, May 12-17, Shanghai, China

• O. Dadoun, E. Froidefond, E. Voutier on behalf of the PEPPo Collaboration, "Characterization of the Analyzing Target of the PEPPo Experiment"

IPAC 2013, May 12-17, Shanghai, China

• A. Adeyemi, E. Voutier on behalf of the PEPPo Collaboration, "The Calibration of the PEPPo Polarimeter for Electrons and Positrons"

PEB2013, Workshop to Explore Physics Opportunities with Intense, Polarized Electron Beams Workshop Website Workshop photos

• M. Poelker, "High Current Polarized Electron Source" PPTX, PDF

2007

IPAC 2007, Albuquerque, New Mexico

• J. Grames, P. Adderley, J. Brittian, J. Clark, J. Hansknecht, D. Machie, M.Poelker, M.L. Stutzman, R. Suleiman, K. Surles-Law, "LIFETIME MEASUREMENTS OF HIGH POLARIZATION STRAINEDSUPERLATTICE GALLIUM ARSENIDE AT BEAM CURRENT >1 MILLIAMP USING A NEW 100kV LOAD LOCK PHOTOGUN", Proceedings of PAC07, Albuquerque, New Mexico, USA, THPMS064 media:THPMS064.PDF

1997 - 2012

Until this section updated please refer to Old CIS Homepage